单词：arc secant
- arcsecant反正割
- arcsec角秒（=arc seco...
- inverse secant反正割
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Several years ago, Iris Arc Crystal, a company I co-founded with Francesca Patruno, experienced a 1)lull in business. We had recently hired several new employees and hoped that the 2)slowdown was only
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Several years ago, Iris Arc Crystal, a company I co-founded with Francesca Patruno, experienced a 1)lull in business. We had recently hired several new employees and hoped that the 2)slowdown was only temporary. However, in the meantime, we had work
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